How to delete the USB flash drive usage record of the Registry

How to delete the USB flash drive usage record of the registry 1. Add the environment variable devmgr_shownonpresent_devices to the system. The value is 1. Run the Device Manager and open view hidden devices. Expand the disk drive and storage volume, and Kill the disk. 3. Open Computer Management and delete removable storage.
4. Delete the system environment variables added in 1. Up to now, you may not be able to delete all the usb usage records in the registry. There may still be usage records in HKEY_LOCAL_MACHINESYSTEMControlSet002EnumUSBSTOR, and then open the powerful regedt32 tool to find this item, the system downloads and modifies permissions, and then deletes the subitem.

In addition, some HKEY_LOCAL_MACHINESYSTEMControlSet002EnumUSB files related to USB Storage Mass devices must be deleted. Clear the USB flash drive usage record of the registry. 1. Press start --> to run the command. Enter the command regedit in the input box. 2. Delete the USBSTOR subitem in the following directory in the registry. (1) Secure (2) Secure (3) HKEY_LOCAL_MACHINESYSTEMControlSet003EnumUSBSTOR (4) HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumUSBSTOR Delete the above USB stor subitem. If you need to completely clear the USB usage records, after completing the above operations, you can download the following procedure from the new Radish home system: 1. Delete all records except ROOT_HUB and ROOT_HUB20 under the following USB sub-item. (1) Configure (2) HKEY_LOCAL_MACHINESYSTEMControlSet002EnumUSB (3) Configure (4) HKEY_LOCAL_MACHINESYSTEMCurrentControlSetEnumUSB permission operations are consistent with the preceding operations. 2. delete some sub-items that contain usb words, such as a5d... And 53f... under DeviceClasses. (1) Detail {a5dcbf10-6530-11d2-901f-00c04fb951ed} (2) HKEY_LOCAL_MACHINESYSTEMControlSet002ControlDeviceClasses {a5dcbf10-6530-11d2-901f-00c04fb951ed} (3) HKEY_LOCAL_MACHINESYSTEMControlSet003ControlDeviceClasses {a5dcbf10-6530-11d2-901f-00c04fb951ed} (4) Detail {detail }##? # USBSTOR # Disk & Ven_Alcor & Prod_Flash_Disk & Rev_8.07 #2624 BFBB & 0 # {53f56307-b6bf-11d0-94f2-00a0c91efb8b} ...... other operations are the same as those in the previous step. ========================================================== ====================== Convenient small method: in fact, it does not need to be so troublesome. log on with an administrator account. after entering the Registry (XP can enter "regedit" in "run", 2 K can enter "regedit32 "), enter "USBSTOR" in "edit"-> "Search" and select "item" only. Do not select "value" or "data" to speed up the query. then "OK ". remove all items found with "USBSTOR" (Press "F3" for each Deleted item "). if you cannot delete a theme package, right-click and select "permission" to go to permission settings. Select "allow" and "Full Control" for the win7 theme package. if you are not at ease, in the registry, select "my computer", Press "F3", and then query and delete it again.